The ChannelMaster, ushering in a new class of totally integrated, feature rich portable microwave transmitters. The ChannelMaster offers MPEG-4 HD/SD encoding. The ChannelMaster is available in single, dual or tri-band configurations, using frequency bands from 1.5-15.4 GHz. The ChannelMaster encoder features adjustable long GOP encoding including I P and B frames improving video quality as well as a low delay mode. The encoder can be purchased as HD/SD or SD only. For increased flexibility a wide array of inputs are provided, including composite video/audio, SDI (with de-embedded audio), ASI and 70 MHz. The ASI input is ideal for use with an external encoder or to support digital repeater applications. Two audio inputs are standard, while four audio inputs are available. For FM operation, an internal SDI to composite converter is integrated providing seamless operation between analog and digital modes. This eliminates the need for an external converter when used in an SDI plant. This feature also de-embeds the audios if desired.

The ChannelMaster features software generated modulation formats that are stored in circuit board PROMs (programmable read only memory). Available formats include — FM (NTSC/PAL), COFDM, VSB, DVB-S and single carrier QAM. As additional digital software formats become available, the PROMs can be easily updated. This feature increases the flexibility of the ChannelMaster and helps avoid obsolescence.

The ChannelMaster is equipped with a front panel smart display, five quick keys, and 15 quick-store presets for quick set up and operator conve-nience. The ChannelMaster Transmitter uses the rugged and weatherproof clam shell design, first offered by Nucomm, and is very lightweight, optimizing it for a multitude of applications. It can also be purchased in a “two box” configuration for OB vehicles.

Features:n Lightweight—ideal for portable or

airborne applications

n HD/SD MPEG-4, Part-10/H.264 encoding

n Multiple modulation selectable; FM, COFDM, VSB, QAM, DVB-T

n Available in single, dual or tri-band configurations

n Frequency agile via preset channels or in 250 kHz step sizes (100 kHz internationally)

n Remote control of all functions via RS-232/RS-485

n Dynamic color bars with field programmable ID

n Video inputs: composite video, SDI (HD), DVB-ASI, 70 MHz

n Audio inputs: two analog standard, four audio available; AES/EBU, de-embedded from SDI

n Integral SDI to composite video converter for FM operation

n Front panel LCD smart display for total control

n Five quick keys provide for easy operation and fast access to com-monly used functions

n Fifteen quick-store presets allow quick access to user configurable parameters and setups

n Power outputs from 0.25 W to 8 W

n Integrated universal AC/DC power supply

n AES Encryption

HD/SD Portable Transmitter Integrated Encoder and Multi-Mode Modulator

ChannelMaster TX7.4

Smart DisplayThe Nucomm ChannelMaster offers optimum flexibility, is easy to use, and sets up fast in the field. The front panel

smart display and internal microprocessor are used to control and monitor all functions and operating parameters including everything from modulation and channel selection to RF power levels and audio subcarrier programming. All parameters of the modulator and encoder are set via the smart display. When the modulator parameters are set the encoder is also automatically set.

Quick KeysNo need to wade deep into menus for that set up function that you need in a hurry. The front panel has five quick keys which provide quick access to commonly used functions such as input selection, modulation mode, audio functions, color bars and standby mode.

Quick-Store User Presets

To meet operator demands, 15 quick-store presets are provided for recall of predefined transmitter settings. The operator can instantly switch between pre-programmed modes of operation. This will be useful during the 2 GHz relocation, when migrating from old to new frequency plans and from analog to digital operation.

Dynamic Color BarsThe dynamic test pattern generator functions in both the analog and the digital modes. A programmable 16 character ID is included and contains alpha and numeric characters. The dynamic pattern offers several characters that are blinking. This is necessary for digital operation when the pattern must show some motion in order to verify the link.

Inputs & OutputsThe transmitter offers separate connectors for ASI In, SDI In, 70 MHz In and Video In. All input and power connectors are located on the lower portion of the front panel. An RF type “N” connector is located on the rear of the unit. A “D” connector is located on the side of the unit for full RS-232/RS-485 remote control. RS-232/RS-485 is also available on the front panel multi-pin connector.

Output PowerThe 2 GHz ChannelMaster is available with a 5 watt analog/1.5 watt digital amplifier or 12 watt analog/5 watt digital internal amplifier. An optional high power 10 W digital amplifier is also available. The 7 GHz model is available with a 5 watt analog/1.5 watt digital amplifier. The 13 GHz model is standard with a 3 watt analog/0.5 watt digital. The dual band and tri-band models can be configured with any combination of the power amplifiers offered.

High/low RF power levels are front panel switchable. The low power mode is typically 3 to 6 dB below the high power setting.

HDTV TransmissionThe demand for high definition transmission from the field is increasing, and the ChannelMaster TX7.4 is ready. The multiple modulation format capability of the ChannelMaster offers the flexibility of transmitting in the robust COFDM format in non line of site multipath scenarios or single carrier formats for line of site ultra-high data rate scenarios. The integrated HD/SD low latency encoder makes it easy for the operator as no additional equip-ment is necessary and all modes can be simply programmed into presets.

The ChannelMaster can be configured to operate using DVB-T compliant 6/7/8 MHz COFDM. COFDM offers a dramatic increase in data rates to accommodate high quality HD transmissions. Also available are VSB and QAM modulation modes that offer data rates of 30 Mbps and beyond. VSB modulation is superior to QAM, in that for a given bandwidth, higher data rates are achievable. Our HD solution is also comprised of a very powerful long GOP encoder using IPB frames to improve video quaility by 30% over traditional IP frame-only encoders. With an eye on the future, Nucomm's HD encoder/ modulator is designed to be upgradeable as formats change in HD transmission.

Typical selectable data rates are shown in Table One. Note that VSB provides multiple data rates up to 29 Mbps in a 6 MHz bandwidth. This is ideal for split channel operation. Table Two lists the data rates for COFDM with two typical code rates (FEC).

In VSB mode, the RF output will be ~1dB higher for the same spectral regrowth performance. This will provide expanded coverage. For markets using split channel operation, VSB can accomodate 19 MBits in a 6 MHz channel while still meeting FCC mask — which can not be achieved with COFDM.

HD/SD Portable Transmitter Integrated Encoder/Multi-Mode Modulator

ChannelMaster TX7.4

Table One

Available Data Rates with Various VSB Modulation Formats:Standard VSB

Modulation Data Rate Bandwidth(VSB) (Mbps) (MHz)

28

8T*

9.629.019.4

6.06.06.0

* Tr ellis Coded 8VSB (ATSC)

Table Two

COFDM Transmission Maximum Data Rates at 8 MHz Bandwidth:

Modulation Code Rate Data Rate (Mbps)

QPSK

16-QAM

64-QAM

1/27/81/27/81/27/8

6.0320910.5561512.0641721.1123018.0962631.66845

Guard Interval = 1/32

System ConfigurationThe ChannelMaster transmitter is very flexible and can be configured according to the individual customer’s needs. As a base unit the ChannelMaster transmitter is supplied in a single band format in either 2 GHz, 7 GHz or 13 GHz and is configured for both AC and DC operation (low power models). The basic unit is supplied in a low power configuration for the band chosen and without modulators but with a 70 MHz input. The system is then built up by adding any or all of the following:

n Analog FM modulator, SD or SD/HD

n MPEG-2/MPEG-4/COFDM encoder modulator (4:2:2* and 4:2:0 switchable)

n Two audio channels standard (Four available)

n Choice of a third modulation format** — VSB, QAM, DVB-T

n Dual band and tri-band operation***

n Selection of internal high power amplifiers

n Dynamic color bar generator with ID * SD only ** When available *** Frequency bands from 1.5 to 15.4 GHz available

ApplicationsThe ChannelMaster is ideal for a variety of field applications including: tripod mounted portable, airborne and ENG van transmit systems.

Tripod Mounted Portable SystemNucomm offers a wide variety of portable system products and ac-cessory items including: medium and heavy duty tripods, portable antennas—including megahorn and parabolic, configurations in 2, 3 and 4' sizes. Carry/shipping cases (all sizes) and batteries/adapters, L-brackets and multiplexers for duplex operation are also available. The ChannelMaster Portable Receiver is the perfect compliment to the ChannelMaster Transmitter and makes for a complete point to point portable link. Configurations include simplex, duplex and repeater systems.

Airborne SystemThe ChannelMaster is extremely light-weight, even in a high output power, band configuration. This makes it extremely at-tractive for airborne applications such as helicopter, fixed wing aircraft and blimps. The transmitter can be configured with internal high power amplifiers or external 10 W digital ultra high power amplifiers. The ChannelMaster Portable Receiver is ideal for airborne repeater applications. Hand held and panel mounting remote controls are available for the transmitter and receiver.

ENG Truck Pac SystemNucomm offers all of the system accessories necessary for those that like the versatility of having a full-up portable transmitter located in the truck. The transmitter can easily be removed and used for portable applications, when the need arises. Accessories include a variety of mast-mounted power amplifiers, including an 8 W digital ultra high power amplifier and a 19” rack mounting control shelf with power supply. The control shelf holds the ChannelMaster transmitter and provides DC power to the power amplifier.

SDI Converter Built-InFor systems that are fully designed for SDI, there’s no more need for expensive external SDI-Composite converters when Analog FM operation is used, because we’ve built a professional grade SDI-to-composite converter into our FM Modulator. Additionally, the embedded audio on the SDI can be de-embedded and ap-plied to the audio subcarriers. This is especially handy when the camera you are using outputs everything on a single SDI cable.

HD/SD Portable Transmitter Integrated Encoder/Multi-Mode Modulator

ChannelMaster TX7.4

2/4

ENG Truck Pac System

200 International Drive, Mt. Olive, NJ 07828 USA T. +1.908.852.3700 F. +1.908.813.0399 www.imt-broadcast.com

RF Performance:Frequency Bands (Front panel selectable):Part Number Frequency* Analog Digital Power (GHZ) Power (dBm) (dBm)23CMTX7.4-L5 1.9 to 2.5 40.8 3723CMTX7.4-E1.5 1.9 to 2.5 37 3325CMTX7.4-L5 2.3 to 2.7 40.8 3725CMTX7.4-E1.5 2.3 to 2.7 37 3370CMTX7.4-E1.5 6.4 to 7.2 37 31.872CMTX7.4-E1.5 6.7 to 7.4 37 31.875CMTX7.4-E1.5 7.1 to 7.7 37 31.882CMTX7.4-E1.5 7.7 to 8.5 37 31.8100CMTX7.4-C5 10 to 10.6 34.5 27130CMTX7.4-C5 12.7 to 13.2 34.5 27 * Other plans available per user requirements. Contact Nucomm** Limited to comply with FCC (USA) regulations. Tuning step size: 250 kHz (US), 100 kHz (International) 70 MHz input: –10 dBm to 0 dBm (75 Ohms) Frequency stability: ± 5ppm (.0005%)Modulation Modes:Modulation 1: Modulation Formats: COFDM (DVB-T) Constellation: QPSK, 16QAM, 64 QAM Code Rate: 1/2, 2/3, 3/4, 5/6, 7/8 Guard Interval: 1/32, 1/16, 1/8, 1/4 Bandwidth: 6 MHz, 7 MHz, and 8 MHz Modulation 2 AnalogFM: 2fieldtunablesub-carriers(optional4) Modulation Deviation: 3 MHz/volt or 4 MHz/volt selectableModulation 3 (optional) Modulation Formats VSB Constellation: 2VSB, 8VSB, 8TVSB(ATSC)Digital Modulation:Video: CompositeInput: 75Ω,1Vp-p,NTSC/PAL HD/SD SDI Input SD: SMPTE 259M Level C 270 Mb/s 565/625 Component HD: SMPTE 292M 1.485 Gb/s SMPTE 274M 1920x1080 SMPTE 296M 1280x720 MPEG-2 Encoding SDProfile: MP@ML(4:2:0)1-15MPBS 422@ML(4:2:2)3-50MPBS HDProfile: MP@HL MP@H14L Latency: Low Delay(GOP:0) ~90 ms MPEG-4 Encoding Method: MPEG-4 Part 10/H.264 AVC Profile: MainProfile(4:2:0)Level4.1 Latency: Low Delay ~120 msAudio Audio Input: Line, gain selectable (10 dB), 600 (18 dBm = 0dBFS) AES/EBU,150Ωbalanced De-embedded from SDI Mic (0 - +28 dB Gain, selectable phantom power) requires XLR connector option Tone (-10 dBfs/8 dBm) level adjustable (-10-26 dBfs) Frequency Response: 40 Hz – 20 KHz: ± 0.5 dB

Encoding: ISO/IEC 11172-3 (Layer I/II) Sample Rate: 48KHz Audio Channels: 2 Stereo, 4 Mono (Selectable)System Video Present: Remote standby/test generator selectable Test Generator(dynamic): SMPTE CB(NTSC)/100% CB(PAL) 16 Character ID (Match SDT Service name) 1 KHz Tone/Pulse Encryption: Optional AES Block Cypher, supporting key size of 128 & 256 bits (FIPS PUB 197)FM Modulation:Video Video: 525/625linesNTSC/PALfieldselectable Compositeinput: 75Ω,1Vp-p,NTSC/PAL SDI input: ANSI/SMPTE 259M Level C 270 Mb/s, 525/625 Component Video Emphasis: NTSC/PAL/Bypass (CCIR 405) Differential Phase: ± 1.0 degrees Differential Gain: ± 1.0 %Audio Audio Channels: 2 tunable subcarriers (4.83 – 9 Mhz 10KHz steps) 4 optional AudioInput: Line,gainselectable(10dB),600Ω, AES/EBU, 150 balanced* De-embedded from SDI (4 channels)* *(0dBFS = +18 dBm) Tone1KHz@+8dBmadjustableFrequency Response: 40 Hz – 10 KHz: ± 0.5 dB 40 Hz – 15 KHz: ± 1.0 dB AudioTHD: 0.5%@1KHz,+8dBm Emphasis: 50µs/75 µs (follows video)System Remote Control: RS232/RS485 (2 wire)Power Requirements:Input Range: AC: 85 to 264 VAC, 50/60 Hz DC: +11 to +32 VPower Consumption: 80 W typical (12 watt version)Environmental:Temperature Range: Fullspecification: -30°to+60°CAltitude: Operating: 20,000' (6,000 m)Physical Characteristics: Size: 4.89" x 7.5" x 12.0"

(12.42 x 19.05 x 30.48 cm) Weight: 15 - 22 lbs (6.8 - 10 kg) (depending on options) Dual Band and Tri-Band,

high-power:17.00 lbs (7.65 kg) Control: Rotary knob/membraneConnectors: Video/SDI DVB-ASI/70MHz: Type BNC-F Audio: Military style with break out to XLR Optional XLR-3 native connector RF Output: Type “N” female Remote Control 9 Pin D, female Power Military style with break out to XLR

HD/SD Portable Transmitter Integrated Encoder/Multi-Mode Modulator

ChannelMaster TX7.4

Nucomm reserves the right to make changes to specifica-tions of products described in this datasheet at any time without notice and without obligation to notify. Versions of this device may not have been approved by the Federal Communications Commission. These versions are not offered for sale or lease until approval of the FCC has been obtained. 023_03_14